package com.example.shuiyin.service.impl;

import com.example.shuiyin.dto.payment.PaymentStatusResponse;
import com.example.shuiyin.service.PaymentService;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

@Service
@RequiredArgsConstructor
@Slf4j
public class PaymentServiceImpl implements PaymentService {

    private final ApplicationEventPublisher eventPublisher;

    @Override
    public Map<String, Object> createPaymentOrder(Long userId, String planId, String paymentMethod, String billingCycle) {
        // TODO: 实现创建支付订单功能
        log.info("创建支付订单: userId={}, planId={}, paymentMethod={}, billingCycle={}", userId, planId, paymentMethod, billingCycle);
        
        // 临时实现，用于避免自动装配错误
        String orderId = UUID.randomUUID().toString();
        Map<String, Object> result = new HashMap<>();
        result.put("orderId", orderId);
        result.put("payUrl", "https://example.com/pay/" + orderId);
        result.put("qrCode", "");
        result.put("expireTime", System.currentTimeMillis() + 1800000); // 30分钟后过期
        
        return result;
    }

    @Override
    public void processPaymentWebhook(Map<String, Object> payload, Map<String, String> headers) {
        // TODO: 实现处理支付回调功能
        log.info("处理支付回调: payload={}, headers={}", payload, headers);
        
        String orderId = (String) payload.get("orderId");
        String status = (String) payload.get("status");
        Long userId = Long.valueOf(String.valueOf(payload.get("userId")));
        String planId = (String) payload.get("planId");
        String billingCycle = (String) payload.get("billingCycle");
        
        if ("success".equals(status)) {
            // 支付成功，通过事件发布而不是直接调用订阅服务，避免循环依赖
            Map<String, Object> eventData = new HashMap<>();
            eventData.put("userId", userId);
            eventData.put("planId", planId);
            eventData.put("orderId", orderId);
            eventData.put("billingCycle", billingCycle);
            
            // 发布支付成功事件
            // eventPublisher.publishEvent(new PaymentSuccessEvent(eventData));
            
            log.info("发布支付成功事件: {}", eventData);
        } else if ("failed".equals(status)) {
            // 支付失败，可能需要进行一些记录或通知
            log.warn("支付失败: orderId={}, userId={}", orderId, userId);
        }
    }

    @Override
    public String queryOrderStatus(String orderId) {
        // TODO: 实现查询支付订单状态功能
        log.info("查询支付订单状态: {}", orderId);
        
        // 临时实现，用于避免自动装配错误
        return "pending";
    }

    @Override
    public void cancelOrder(String orderId, Long userId) {
        // TODO: 实现取消支付订单功能
        log.info("取消支付订单: orderId={}, userId={}", orderId, userId);
    }

    @Override
    public boolean processRefund(String orderId, Long userId) {
        // TODO: 实现退款处理功能
        log.info("处理退款: orderId={}, userId={}", orderId, userId);
        
        // 临时实现，用于避免自动装配错误
        return true;
    }

    @Override
    public String handleWebhook(String payload) {
        log.info("收到支付回调: {}", payload);
        // TODO: 实现支付回调处理逻辑
        return "success";
    }

    @Override
    public PaymentStatusResponse getPaymentStatus(String orderId) {
        log.info("查询支付状态: {}", orderId);
        // TODO: 实现支付状态查询逻辑
        PaymentStatusResponse response = new PaymentStatusResponse();
        response.setOrderId(orderId);
        response.setStatus("PENDING");
        response.setMessage("支付处理中");
        return response;
    }

    @Override
    public String cancelPayment(String orderId) {
        log.info("取消支付: {}", orderId);
        // TODO: 实现支付取消逻辑
        return "success";
    }
} 